Gregory Steiner, M.D.
NPI 1841557188 · Surgery Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Vascular Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Steiner, M.D. is a Surgery Physician provider in Baltimore, MD (NPI 1841557188).
Provider details
- NPI number
- 1841557188
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 2019022885 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,234 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 192 | $31 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 177 | $86 |
| Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971 | 108 | $20 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 101 | $36 |
| Complete Ultrasound Study of Arm and Leg Arteries93923 | 70 | $21 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 62 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clopidogrel Bisulfatebrand: Clopidogrel | 96 | 33 |
| Apixabanbrand: Eliquis | 94 | 23 |
| Cilostazol | 56 | 18 |
| Atorvastatin Calcium | 29 | 11 |
| Tramadol Hcl | 15 | — |
| Rivaroxabanbrand: Xarelto | 13 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$6,999 across 34 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-11
- Last updated
- 2025-07-11
Frequently asked questions
- What is Gregory Steiner's NPI number?
- Gregory Steiner's National Provider Identifier (NPI) is 1841557188, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Steiner's specialty?
- Gregory Steiner is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Steiner located?
- Gregory Steiner's practice location on file with NPPES is 201 E University Pkwy, Baltimore, MD 21218-2829.
- What is Gregory Steiner's phone number?
- The practice phone number listed in the NPPES registry for Gregory Steiner is (410) 554-2782.
- Does Gregory Steiner accept Medicare?
- Gregory Steiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Steiner's NPI active?
- Yes — Gregory Steiner's NPI (1841557188) is active in the NPPES registry as of the last update on 2025-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.